Binary digits of Pi from one quadrillion minus three to one quadrillion sixty (September 11, 2000):

1110011000100001011010110000011010011100101101101100000111010011

Therefore, the least significant known bit of Pi is 1 at position 1,000,000,000,000,060 (one quadrillion sixty) or 1015+60.

To calculate the five trillionth digit (and the following seventy-six digits) took 13,500 CPU hours, using 25 computers from 6 different countries. The forty trillionth digit required 84,500 CPU hours and 126 computers from 18 different countries. The highest calculation, the one quadrillionth digit, took 1.2 million CPU hours and 1,734 computers from 56 different countries. Total resources: 1,885 computers donated 1.3 million CPU hours. The average computer that was used to calculate would have taken 148 years to complete the calculations alone.

While the PiHex project calculated the least significant digits of Pi ever attempted in any base, second place is held by Shigeru Kondo who derived the 5 trillionth digit in base 10.